Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Integral preparation method of ceramic-based composite lattice structure

A lattice structure and composite material technology, which is used in ceramic molding machines, manufacturing tools, mold fixtures, etc., can solve the problems of difficult dimensional accuracy control, poor interlayer strength, and low pressure bearing capacity of composite lattice structures. , to improve the overall compressive capacity, improve the interlaminar strength, and improve the effect of deformation

Active Publication Date: 2019-09-06
湖南远辉复合材料有限公司
View PDF16 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of the prior art, such as the complex process for preparing ceramic matrix composite lattice structures, the difficulty in controlling the dimensional accuracy, or the low pressure bearing capacity and poor interlayer strength of the obtained composite lattice structures, and to provide a An integral preparation method for the lattice structure of ceramic matrix composite materials, the method has simple steps, simple equipment requirements, and can realize the net shape of the product, and the obtained product has controllable external dimensions and high pressure bearing capacity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integral preparation method of ceramic-based composite lattice structure
  • Integral preparation method of ceramic-based composite lattice structure
  • Integral preparation method of ceramic-based composite lattice structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of overall forming mold of fiber prefabricated body with lattice structure of composite material, its three-dimensional structure schematic diagram is as follows Figure 4 As shown, it includes a direction control slide rail plate 1, an outer pressure plate 3, an inner pressure plate 4, a fixed block 5, and a trapezoidal pad 6; the direction control slide rail plate 1 is used to set the corrugated structure, including two plates with the same design and layout, Structural diagram such as Figure 5 As shown, N+1 inverted isosceles trapezoidal through-holes 10 are arranged horizontally on the plate, N is an integer, and N upright isosceles trapezoidal through-holes 11 are arranged alternately along the horizontal direction, and the upright isosceles trapezoidal through-holes 11 The inverted isosceles trapezoidal through-holes 10 are relatively staggered; the four corners of the two plates are correspondingly provided with slide rail plate connection holes 2, which ...

Embodiment 2

[0053] The method for using the composite material lattice structure fiber prefabricated integral molding die described in Example 1 comprises the following steps:

[0054] S11, cutting the fiber cloth to the design size, including the panel fiber cloth and the trapezoidal corrugated board fiber cloth;

[0055] S12. Lay panel fiber cloth on the surface of one of the inner pressure plates to the designed number of layers;

[0056] S13. Make the two flat plates of the direction control slide rail plate 1 connected and fixed through the slide rail plate connection hole 2 through the slide rail column and the inner pressure plate connected and fixed to the frame of the outer pressure plate 3 which has laid panel fiber cloth into a vertical cross state, The upright isosceles trapezoidal through hole 11 and the inverted isosceles trapezoidal through hole 10 on the direction control slide rail plate 1 are located above the surface of the fiber cloth of the inner pressure plate of the p...

Embodiment 3

[0064] A ceramic matrix composite material corrugated plate lattice structure, the lattice structure uses SiC / SiC ceramic matrix composite material as a heat-resistant / load-bearing lightweight lattice structure.

[0065] The SiC / SiC ceramic matrix composite corrugated plate lattice structure of this embodiment is prepared by the following steps:

[0066] (1) Forming of fiber prefabricated parts: SiC fiber cloth is cut into the required size, and the corrugated board is laid according to the operation steps described in embodiment 2 in the integral molding mold of the composite material lattice structure fiber prefabricated body described in embodiment 1 8 layers of SiC fiber cloth and the panel, the corrugated board fiber cloth and the panel fiber cloth are interlayer stitched, and the contact part of the corrugated board fiber cloth and the panel fiber cloth is integrally stitched to obtain a lightweight lattice structure fiber prefabricated body;

[0067] (2) Vacuum impregna...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an integral preparation method of a ceramic-based composite lattice structure. An integral forming mold for a composite lattice structure fiber preform is used to realize the simple preparation of the ceramic-based composite corrugated plate lattice structure, improve the interlayer performance and achieve a high profile dimension control precision, batch production and product net-forming. The prepared ceramic-based composite corrugated plate lattice structure has the advantages of good high temperature resistance, good oxidation resistance and good mechanical properties, can be reused, and is especially suitable for being applied to the high temperature (1000-1650 DEG C) oxidizing environment.

Description

technical field [0001] The invention generally belongs to the technical field of high temperature resistance and thermal protection, and in particular relates to an integral preparation method of a lattice structure of a corrugated plate made of a ceramic matrix composite material. Background technique [0002] A hypersonic vehicle is subject to the combined effects of aerodynamic load and thermal load during high-speed flight or reentry. In order to ensure the integrity of the vehicle’s shape and structure, and the normal operation of the internal components of the vehicle, the thermal protection system needs to meet thermal protection, heat insulation and structural requirements. carrying needs. The surface temperature of the large-area thermal protection system of a hypersonic vehicle is as high as 1200 °C, so traditional heat-resistant materials such as high-temperature insulation tiles, flexible insulation blankets, and metal TPS structures cannot meet the requirements ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/14C04B35/117C04B35/185C04B35/571C04B35/80C04B35/82B28B1/52B28B7/00
CPCB28B1/52B28B7/00B28B7/0002B28B7/0014C04B35/803C04B35/806C04B35/117C04B35/14C04B35/185C04B35/571C04B35/82C04B2235/5224C04B2235/5232C04B2235/5244C04B2235/5248C04B2235/5256C04B2235/616C04B2235/656C04B2235/6567
Inventor 贾成兰张玉娣易雄辉
Owner 湖南远辉复合材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com